222532251 has 16 divisors (see below), whose sum is σ = 303010464. Its totient is φ = 145234944.

The previous prime is 222532243. The next prime is 222532279. The reversal of 222532251 is 152235222.

222532251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 222532251 - 2³ = 222532243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (222532201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26295 + ... + 33711.

It is an arithmetic number, because the mean of its divisors is an integer number (18938154).

Almost surely, 2^222532251 is an apocalyptic number.

222532251 is a deficient number, since it is larger than the sum of its proper divisors (80478213).

222532251 is a wasteful number, since it uses less digits than its factorization.

222532251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7630.

The product of its digits is 2400, while the sum is 24.

The square root of 222532251 is about 14917.5149069810. The cubic root of 222532251 is about 605.9884132238.

Adding to 222532251 its reverse (152235222), we get a palindrome (374767473).

The spelling of 222532251 in words is "two hundred twenty-two million, five hundred thirty-two thousand, two hundred fifty-one".